Cameron (Steve Railsback, Lifeforce) is a man who finds himself unmoored from American life: recently returned from Vietnam, he is now a drifter on the run from the law. While evading police, he stumbles upon the filming of a World War I movie helmed by the megalomaniacal Eli Cross (Peter O'Toole, Lawrence of Arabia). When Cameron discovers that he bears a striking resemblance to the lead actor, he hatches a plan: to hide from his potential captors by disguising himself as a stunt double and agreeing to perform a series of increasingly dangerous stunts. But nothing is what it first seems on an Eli Cross set, and as illusion and make-believe start to bleed into one another, Cameron finds himself locked in a battle of wits with a possibly insane genius, and in danger of becoming unmoored not just from society, but from reality itself...